The below mentioned article provides a short note on Collagen:- 1. Introduction to Collagen 2. Synthesis of Collagen 3. Inherited Defects. Introduction to Collagen: 1. Collagen is the major macromolecule of connective tissues and it is the most common protein in the animal kingdom. 2. In mammalian tissues, there are five distinct types of collagen and they exist as a [...]
The following points highlight the top three filamentous structures of eukaryotic cell. The filamentous structures are: 1. Actin Filaments 2. Microtubules 3. Intermediate Filaments. Filamentous Structure # 1. Actin Filaments: a. The G-actin protein of non-muscle cells has a molecular weight of about 43,000 and contains N-methylhistidyl residues. b. This actin spontaneously polymerizes in the presence of magnesium and potassium [...]
In this article we will discuss about Muscle:- 1. Muscle Structure 2. Proteins in Muscle 3. Phosphagens 4. Inorganic Constituents. Muscle Structure: 1. Skeletal muscle is composed of fibrils surrounded by electrically excitable membrane, the sarcolemma. 2. The individual muscle fibre consists of a bundle of many myofibrils arranged in parallel. These are embedded by intramuscular fluid termed the sarcoplasm. [...]